In a large bowl, combine ground beef, ground pork, breadcrumbs, egg, Parmesan cheese, garlic powder, onion powder, salt, and pepper. Gently mix until just combined.
Roll the meat mixture into 1-inch meatballs.
Place the meatballs on a baking sheet lined with parchment paper.
Bake for 25-30 minutes, or until cooked through.
Notes
Serve with your favorite pasta sauce and a side salad.